Looking for Transmission help, 03 LB7 2500HD 4x4. Driving home last week and the truck jerked a couple of time, got home and pull a PO735 Code, 5th Gear incorrect ratio. I have put all new input and output sensors in the tranny, also new vehicle speed sensor in the transfer case, noticed while under truck the rear output seal had a leak, transfer case fluid low, little over a quart low, drained old transfer case fluid, check for metal fillings none found, filled it back up with 2 quarts. Now when the truck gets to 5th gear it slips and makes a slipping noise and the speedometer is still running at a stop. If I'm driving and it slips I can ease of the throttle and it will re engage gear again, any help would be gratefully appreciated .
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